Buffer Overflow Vulnerability in stb_image Library Affecting Image Processing
CVE-2021-42716

7.1HIGH

Key Information:

Vendor

Nothings

Status
Stb Image.h
Vendor
CVE Published:
21 October 2021

What is CVE-2021-42716?

A buffer overflow vulnerability exists in the stb_image library, specifically in the PNM loader. This issue arises when 16-bit PGM files are incorrectly processed as 8-bit images, leading to improper memory handling and potential crashes in services utilizing stb_image. Furthermore, attackers might exploit this vulnerability to read up to 1024 bytes of non-consecutive heap data, posing risks to application integrity and data security.

References

https://github.com/nothings/stb/issues/1166
x_refsource_MISC
https://github.com/nothings/stb/pull/1223
x_refsource_MISC
https://github.com/nothings/stb/issues/1225
x_refsource_MISC

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.